The Central Electricity Regulatory Commission has extended the solar and wind projects commissioning deadline to be eligible for the waiver of the interstate transmission system (ISTS) charges to October 1, 2023. Earlier, the Ministry of Power waived ISTS charges on all solar and wind projects commissioned before June 30, 2023. The ISTS charges waiver will be applicable for 25 years from the commissioning date for the transmission and sale to entities with renewable purchase obligations.